如何使用vscode+platformIO+ arduino开发 esp32 lvgl遇到垂直y方向上半部分出现下面问题？

Question

使用vscode+platformIO+ arduino开发 esp32 lvgl遇到垂直y方向上半部分出现下面问题

找了很久解决不了

Data y 273
[Warn]  (8.077, +46)     indev_pointer_proc: Y is 273 which is greater than ver. res    (in lv_indev.c line #368)
Data x 63
Data y 267
[Warn]  (8.119, +42)     indev_pointer_proc: Y is 267 which is greater than ver. res    (in lv_indev.c line #368)
Data x 63
Data y 258
[Warn]  (8.166, +47)     indev_pointer_proc: Y is 258 which is greater than ver. res    (in lv_indev.c line #368)
Data x 64
Data y 249
[Warn]  (8.212, +46)     indev_pointer_proc: Y is 249 which is greater than ver. res    (in lv_indev.c line #368)

下面是我运行的例程

/*Using LVGL with Arduino requires some extra steps:
 *Be sure to read the docs here: https://docs.lvgl.io/master/get-started/platforms/arduino.html  */

#include <lvgl.h>
#include <TFT_eSPI.h>

/*To use the built-in examples and demos of LVGL uncomment the includes below respectively.
 *You also need to copy `lvgl/examples` to `lvgl/src/examples`. Similarly for the demos `lvgl/demos` to `lvgl/src/demos`.
 Note that the `lv_examples` library is for LVGL v7 and you shouldn't install it for this version (since LVGL v8)
 as the examples and demos are now part of the main LVGL library. */

/*Change to your screen resolution*/
static const uint16_t screenWidth  = 480;
static const uint16_t screenHeight = 320;

static lv_disp_draw_buf_t draw_buf;
static lv_color_t buf[ screenWidth * 10 ];

TFT_eSPI tft = TFT_eSPI(screenWidth, screenHeight); /* TFT instance */

#if LV_USE_LOG != 0
/* Serial debugging */
void my_print(const char * buf)
{
    Serial.printf(buf);
    Serial.flush();
}
#endif

/* Display flushing */
void my_disp_flush( lv_disp_t *disp, const lv_area_t *area, lv_color_t *color_p )
{
    uint32_t w = ( area->x2 - area->x1 + 1 );
    uint32_t h = ( area->y2 - area->y1 + 1 );

    tft.startWrite();
    tft.setAddrWindow( area->x1, area->y1, w, h );
    tft.pushColors( ( uint16_t * )&color_p->full, w * h, true );
    tft.endWrite();

    lv_disp_flush_ready( disp );
}

/*Read the touchpad*/
void my_touchpad_read( lv_indev_t * indev_driver, lv_indev_data_t * data )
{
    uint16_t touchX, touchY;

    bool touched = tft.getTouch( &touchX, &touchY, 600 );

    if( !touched )
    {
        data->state = LV_INDEV_STATE_REL;
    }
    else
    {
        data->state = LV_INDEV_STATE_PR;

        /*Set the coordinates*/
        data->point.x = touchX;
        data->point.y = touchY;

        Serial.print( "Data x " );
        Serial.println( touchX );

        Serial.print( "Data y " );
        Serial.println( touchY );
    }
}

void setup()
{
    Serial.begin( 115200 ); /* prepare for possible serial debug */

    String LVGL_Arduino = "Hello Arduino! ";
    LVGL_Arduino += String('V') + lv_version_major() + "." + lv_version_minor() + "." + lv_version_patch();

    Serial.println( LVGL_Arduino );
    Serial.println( "I am LVGL_Arduino" );

    lv_init();

#if LV_USE_LOG != 0
    lv_log_register_print_cb( my_print ); /* register print function for debugging */
#endif

    tft.begin();          /* TFT init */
    tft.setRotation( 3 ); /* Landscape orientation, flipped */

    /*Set the touchscreen calibration data,
     the actual data for your display can be acquired using
     the Generic -> Touch_calibrate example from the TFT_eSPI library*/
    uint16_t calData[5] = { 275, 3620, 264, 3532, 1 };
    tft.setTouch( calData );

    lv_disp_draw_buf_init( &draw_buf, buf, NULL, screenWidth * 10 );

    /*Initialize the display*/
    static lv_disp_t disp_drv;
    lv_disp_drv_init( &disp_drv );
    /*Change the following line to your display resolution*/
    disp_drv.hor_res = screenWidth;
    disp_drv.ver_res = screenHeight;
    disp_drv.flush_cb = my_disp_flush;
    disp_drv.draw_buf = &draw_buf;
    lv_disp_drv_register( &disp_drv );

    /*Initialize the (dummy) input device driver*/
    static lv_indev_t indev_drv;
    lv_indev_drv_init( &indev_drv );
    indev_drv.type = LV_INDEV_TYPE_POINTER;
    indev_drv.read_cb = my_touchpad_read;
    lv_indev_drv_register( &indev_drv );

#if 0
    /* Create simple label */
    lv_obj_t *label = lv_label_create( lv_scr_act() );
    lv_label_set_text( label, LVGL_Arduino.c_str() );
    lv_obj_align( label, LV_ALIGN_CENTER, 0, 0 );
#else
    /* Try an example from the lv_examples Arduino library
       make sure to include it as written above.
    lv_example_btn_1();
   */

    // uncomment one of these demos
    lv_demo_widgets();            // OK
    // lv_demo_benchmark();          // OK
    // lv_demo_keypad_encoder();     // works, but I haven't an encoder
    // lv_demo_music();              // NOK
    // lv_demo_printer();
    // lv_demo_stress();             // seems to be OK
#endif
    Serial.println( "Setup done" );
}

void loop()
{
    lv_timer_handler(); /* let the GUI do its work */
    delay( 5 );
}

下面是我的tft_espi的setup文件

// See SetupX_Template.h for all options available
#define USER_SETUP_ID 42

#define ILI9341_DRIVER

#define TFT_MISO 19  // (leave TFT SDO disconnected if other SPI devices share MISO)
#define TFT_MOSI 23
#define TFT_SCLK 18
#define TFT_CS   15  // Chip select control pin
#define TFT_DC    2  // Data Command control pin
#define TFT_RST   4  // Reset pin (could connect to RST pin)

// Optional touch screen chip select
#define TOUCH_CS 5 // Chip select pin (T_CS) of touch screen

#define LOAD_GLCD    // Font 1. Original Adafruit 8 pixel font needs ~1820 bytes in FLASH
#define LOAD_FONT2   // Font 2. Small 16 pixel high font, needs ~3534 bytes in FLASH, 96 characters
#define LOAD_FONT4   // Font 4. Medium 26 pixel high font, needs ~5848 bytes in FLASH, 96 characters
#define LOAD_FONT6   // Font 6. Large 48 pixel font, needs ~2666 bytes in FLASH, only characters 1234567890:-.apm
#define LOAD_FONT7   // Font 7. 7 segment 48 pixel font, needs ~2438 bytes in FLASH, only characters 1234567890:.
#define LOAD_FONT8   // Font 8. Large 75 pixel font needs ~3256 bytes in FLASH, only characters 1234567890:-.
#define LOAD_GFXFF   // FreeFonts. Include access to the 48 Adafruit_GFX free fonts FF1 to FF48 and custom fonts

#define SMOOTH_FONT

// TFT SPI clock frequency
// #define SPI_FREQUENCY  20000000
// #define SPI_FREQUENCY  27000000
#define SPI_FREQUENCY  40000000
// #define SPI_FREQUENCY  80000000

// Optional reduced SPI frequency for reading TFT
#define SPI_READ_FREQUENCY  16000000

// SPI clock frequency for touch controller
#define SPI_TOUCH_FREQUENCY  2500000

Answer 1

【以下回答由 GPT 生成】

我发现您的问题与垂直Y方向上半部分出现的警告有关。根据警告信息，Y坐标超过了垂直分辨率。这可能是由于不正确的LVGL屏幕配置导致的。我将提供以下解决方案来解决这个问题：

1. 首先，确保您的屏幕的垂直分辨率正确设置。根据您的代码示例，使用的屏幕分辨率是480x320像素，您可以通过以下代码将其设置为LVGL：

/*Change to your screen resolution*/
LV_HOR_RES_MAX = 480;
LV_VER_RES_MAX = 320;

1. 确保您的触摸屏驱动程序已正确配置。请检查您的代码，查看是否正确设置了屏幕触摸驱动程序，并确保其与硬件兼容。在您的代码示例中未包含触摸屏驱动程序的相关代码部分，所以请根据您的具体触摸屏硬件和库进行设置。

2. 如果上述步骤都没有解决问题，可能是由于不正确的触摸坐标映射导致的。您可以使用触摸屏校准工具来校准触摸坐标，以确保其与屏幕坐标一致。对于ESP32，您可以使用TFT_eSPI库中的setTouch方法进行校准。以下是一个简单的示例代码：

#define CALIBRATION_TIME 30

void setup() {
  tft.begin();
  tft.setRotation(3);
  tft.fillScreen(TFT_BLACK);
  tft.setCursor(20, 0);

  // 进行坐标校准
  uint16_t calibrationData[5];
  tft.setTouch(calibrationData);

  Serial.begin(115200);
}

void loop() {
  // Your code here
}

请尝试按照上述步骤进行操作，并检查问题是否已解决。如果问题仍然存在，请提供更多相关的代码和信息，以便我能够更好地帮助您解决问题。如果您没有提供相关的触摸屏硬件和库的代码，我将无法提供更准确的解决方案。

如果你已经解决了该问题, 非常希望你能够分享一下解决方案, 写成博客, 将相关链接放在评论区, 以帮助更多的人 ^-^